Bolt-facing machine.



A. M. HARRINGTON 6a R. P. SCOTT.

BOLT FACING MACHINE.

APPLICATION FILED JULY 3, 191s.

1,090,298. Patented Mar.17,1914.

. Lig. 4

COLUMBIA PLANoon/mn co.,wAsn|No'mN, n. c,

is caused to turn an under-cut facing on said head.

4. 1n a bolt machine, the combination With means for holding and revolving a bolthaving a head, of a guide, a reciprocating slide controlled by said guide, mechanism comprising a treadle for moving said slide along said guide, a holder provided with a tool journaled in said slide, a cam arm iixed to said holder and means fixed to said guide for engaging said cam arm and adjusting said tool in acing` the head of said bolt'.

5. In a bolt machine, the combination with means for revolving a bolt, of a guide, a slide adapted to reciprocate along said guide, a journaled tool holder carried by said slide and means for reciprocating said slide.

6. 1n a bolt machine, the combination of a bearing and means for revolving a bolt, a guide fixed to said bearing, a slide adapted to reciprocate along said guide to and from said means, a tool holder fulerumed on said slide, and means for setting said tool holder relatively to said slide.

7. 1n a bolt machine, the combination with means for revolvinga bolt,v of a fixed guide, a slide adapted to reciprocate along said guide, a tool holder ulcrumed on said. slide, a cam iixed to said tool holder, means in the path of movement of said cam for determining its position and regulating the position of said holder, and means for holding said cam in contact With said means iirst named.

In testimony whereof We have hereunto set our hands this 26th day of June, 1913, in the presence of the subscribing Witnesses.

ARTHUR M. HARRlNGTON. ROBERT F. SCOTT.-

Witnesses Jos. G. DENN?, Jr., GEO. A. CUNNEY.

60191215 og this patent may be obtained for five cents each, by addressing the Commissioner of atente, Washington, D. C. 

